Stone made the statement in an interview with PopEater, where she opened up about her forthcoming album with musician Dave Stewart.

"I had lots of fun making [the album] with Dave," Stone said. "We went to Nashville for, like, six days and at the end of that jam we found an album in there which is quite cool."

Stone went on to speak about attending the royal wedding, claiming that she was invited due to her charity work with Princes William and Harry.

"I've done a lot of things for [the Princes'] charity and their Dad's," Stone said. "You meet William and Harry as you go along; they had me sing at their Mum's thing which was really, really nice. They're just lovely, they're just really friendly, funny, lovely guys. I was quite flattered actually to be invited."